TTM20162015201420132012
Gross margin55.6%70.1%53.7%53.5%51.7%52.4%
Gross margin growth (bps)571,64118187-74203
Operating margin6.4%6.5%6.0%4.4%3.1%1.9%
Operating margin growth (bps)-6491591331231,003
Net profit margin4.1%3.7%4.7%2.7%1.6%9.9%
Net profit margin growth (bps)29-108201114-832-1,195